focal reducer

I have an 11" carbon celestron telescope. what good would a 6.3 focal reducer be in just viewing the sky??? Thanks...very new to this...Terry

The focal reducer will give you lower power, wider field, and brighter image for a given eyepiece. An eyepiece that gives you 100x without the reducer will yield 63x with it, with a field about 1.6x bigger. It can also flatten the field, making the stars at the edge of the field sharper. Hope this helps!